Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 143 · 40 questions

Remember (Shape tells the part): Cell: long and short line (long = +). Battery: two or more cells. Wire: straight line. Junction: a dot. Bulb: circle with a cross. Switch: line lifted at a gap. Resistor: rectangle. Capacitor: two equal parallel lines. Diode: triangle against a bar; LED: the same with two arrows out. Circle with M = motor, A = ammeter, V = voltmeter.

1. 1.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the longer line (c) neither line (d) the shorter line
2. 2.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) voltmeter (b) junction (c) battery (d) bulb
3. 3.True or false: many long-short pairs is the symbol for a bulb. (a) False (b) True
4. 4.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
5. 5.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) bulb (b) resistor (c) voltmeter (d) motor
6. 6.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) junction (b) LED (c) ammeter (d) switch
7. 7.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) switch (b) bulb (c) diode (d) ammeter
8. 8.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
9. 9.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) to make it colourful (c) symbols are heavier (d) quick and clear for all
10. 10.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) straight lines (c) wavy lines (d) dotted circles
11. 11.Which drawing is the symbol for a capacitor? (a) many long-short pairs (b) a circle with A inside (c) triangle against a bar (d) two equal parallel lines
12. 12.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) capacitor (b) diode (c) motor (d) battery
13. 13.Which drawing is the symbol for a voltmeter? (a) a circle with a cross (b) a dot where wires meet (c) a circle with M inside (d) a circle with V inside
14. 14.True or false: two equal parallel lines is the symbol for a resistor. (a) False (b) True
15. 15.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) cell (b) junction (c) diode (d) battery
16. 16.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
17. 17.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
18. 18.True or false: a line lifted at a gap is the symbol for a diode. (a) False (b) True
19. 19.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) motor (b) bulb (c) junction (d) LED
20. 20.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) switch (b) bulb (c) cell (d) resistor
21. 21.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) bulb (b) voltmeter (c) battery (d) junction
22. 22.True or false: a plain rectangle is the symbol for a capacitor. (a) False (b) True
23. 23.True or false: a line lifted at a gap is the symbol for a voltmeter. (a) True (b) False
24. 24.Which drawing is the symbol for a bulb? (a) a plain rectangle (b) a long and a short line (c) a circle with a cross (d) a small empty box
25. 25.Which drawing is the symbol for a motor? (a) a circle with M inside (b) a dot where wires meet (c) a line lifted at a gap (d) a circle with an X in it
26. 26.Which drawing is the symbol for a bulb? (a) a circle with A inside (b) many long-short pairs (c) two equal parallel lines (d) a circle with an X in it
27. 27.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) cell (b) bulb (c) battery (d) wire
28. 28.True or false: a dot where wires meet is the symbol for a resistor. (a) False (b) True
29. 29.Which drawing is the symbol for an ammeter? (a) a dot where wires meet (b) a circle with V inside (c) a circle with an X in it (d) a circle with A inside
30. 30.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) wire (c) resistor (d) battery
31. 31.Which drawing is the symbol for a diode? (a) two equal parallel lines (b) a circle with an X in it (c) triangle against a bar (d) a circle with V inside
32. 32.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
33. 33.Which drawing is the symbol for a cell? (a) two equal parallel lines (b) a plain rectangle (c) many long-short pairs (d) a long and a short line
34. 34.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
35. 35.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) cell (b) wire (c) battery (d) diode
36. 36.Which drawing is the symbol for a wire? (a) a plain rectangle (b) a dot where wires meet (c) two equal parallel lines (d) a straight line
37. 37.True or false: a line lifted at a gap is the symbol for a wire. (a) True (b) False
38. 38.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
39. 39.Which drawing is the symbol for a battery? (a) a straight line (b) a line lifted at a gap (c) two equal parallel lines (d) two or more cell symbols
40. 40.True or false: a circle with A inside is the symbol for a bulb. (a) True (b) False

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